The benefits of NXP’s
proven low-IF architecture
Whereas existing solutions require double IF
conversion, our TEF66xx devices eliminate both
10.7 MHz and 450 kHz IF transformer coils and
ceramics, as well as the expensive external
components for LNA and AGC in the AM and FM
front-ends. Additionally the fully integrated VCO
saves the external LC tank components.
Due to the low IF architecture, there are no critical
high frequency PCB layouts and alignments needed
anymore. Therefore, even set makers with limited RF
know-how or resources can apply the TEF66xx to the
main PCB board, saving significant costs by making
a tuner module design obsolete. Manufacturing is
also made easier by enabling full SMD applications.
Single layer PCB design is supported as well.
Easy to design on the main PCB
• SmallapplicationPCBarea
• NocriticalexternalRFcomponentsdue
to highest integration
– only 34 (all passive SMD) components required
– complete channel selectivity / VCO integrated
• LimitedresourcesandRFknow-howneeded
• SupportssinglelayerPCBdesign
Easy to manufacture
• FullSMDapplicationpossible(nohandmounting)
• Lesshandlingduetosmallnumberofexternal
components
• Nomechanical/softwarealignmentsneeded
• Higherproductionthroughput
IFT
FM
RF
FM
RF VCO
IC
IFT
CER
XTAL
20.5 MHz
10.7 MHz
100 MHz 240 MHz
CER
IC
XTAL
100 MHz
4 MHz
TEF66xx provides significant space savings
Convential state-of-the art tuner module: 48 x 40 mm TEF66xx PCB area